70637521722 has 16 divisors (see below), whose sum is σ = 142571146080. Its totient is φ = 23329823472.

The previous prime is 70637521697. The next prime is 70637521751. The reversal of 70637521722 is 22712573607.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54003568 + ... + 54004875.

It is an arithmetic number, because the mean of its divisors is an integer number (8910696630).

Almost surely, 2^70637521722 is an apocalyptic number.

70637521722 is an abundant number, since it is smaller than the sum of its proper divisors (71933624358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70637521722 is a wasteful number, since it uses less digits than its factorization.

70637521722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108008557.

The product of its (nonzero) digits is 246960, while the sum is 42.

The spelling of 70637521722 in words is "seventy billion, six hundred thirty-seven million, five hundred twenty-one thousand, seven hundred twenty-two".